Method and apparatus for nwdaf-based qos service experience and qos flow level analytics in a wireless communication system

Abstract

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to an example of the present disclosure, a method performed by an NWDAF entity in a wireless communication system, the method comprising: receiving, from a PCF entity, a first message requesting analytics of QoS and policy assistance, wherein the first message includes at least one QoS parameter set; and transmitting, to the PCF entity, a second message including the analytics. The analytics include predictions on the QoS and policy assistance associated with the at least one QoS parameter set, and QoS parameters or a policy to apply for a service are based on the analytics.

What is claimed is: 
     
         1 . A method performed by a network data analytics function (NWDAF) entity in a wireless communication system, the method comprising:
 receiving, from a policy control function (PCF) entity, a first message requesting analytics of quality of service (QoS) and policy assistance, wherein the first message includes at least one QoS parameter set; and   transmitting, to the PCF entity, a second message including the analytics,   wherein the analytics include predictions on the QoS and policy assistance associated with the at least one QoS parameter set, and   wherein QoS parameters or a policy to apply for a service are based on the analytics.   
     
     
         2 . The method of  claim 1 , further comprising obtaining input data including first information on an uplink (UL) delay or a downlink (DL) delay from an operations, administration, and maintenance (OAM) entity, and second information related to the QoS and policy assistance,
 wherein the second information includes at least one of information on a packet filter set from a session management function (SMF) entity, or information on a packet loss rate from a user plane function (UPF) entity, and   wherein the analytics are based on the input data.   
     
     
         3 . The method of  claim 1 , wherein the first message further includes a requested quality of experience (QoE) indicating that the QoS parameters are equal to or higher than the requested QoE. 
     
     
         4 . The method of  claim 1 , wherein each of the at least one QoS parameter set includes at least one of a 5G QoS identifier (5QI), QoS characteristics, or a bit rate including a guaranteed bit rate (GBR) and a maximum bit rate (MBR). 
     
     
         5 . The method of  claim 1 , wherein the predictions include at least one candidate QoS parameter set and a corresponding predicted QoE, and
 wherein the at least one candidate QoS parameter set and the corresponding predicted QoE are within the QoS parameters.   
     
     
         6 . A method performed by a policy control function (PCF) entity in a wireless communication system, the method comprising:
 transmitting, to a network data analytics function (NWDAF) entity, a first message requesting analytics of quality of service (QoS) and policy assistance, wherein the first message includes at least one QoS parameter set;   receiving, from the NWDAF entity, a second message including the analytics, wherein the analytics include predictions on the QoS and policy assistance associated with the at least one QoS parameter set; and   identifying QoS parameters or a policy to apply for a service based on the analytics.   
     
     
         7 . The method of  claim 6 , wherein the analytics are based on an input data,
 wherein the input data includes first information on an uplink (UL) delay or a downlink (DL) delay from an operations, administration, and maintenance (OAM) entity, and second information related to the QoS and policy assistance, and   wherein the second information includes at least one of information on a packet filter set from a session management function (SMF) entity, or information on a packet loss rate from a user plane function (UPF) entity.   
     
     
         8 . The method of  claim 6 , wherein the first message further includes a requested quality of experience (QoE) indicating that the QoS parameters are equal to or higher than the requested QoE. 
     
     
         9 . The method of  claim 6 , wherein each of the at least one QoS parameter set includes at least one of a 5G QoS identifier (5QI), QoS characteristics, or a bit rate including a guaranteed bit rate (GBR) and a maximum bit rate (MBR). 
     
     
         10 . The method of  claim 6 , wherein the predictions include at least one candidate QoS parameter set and a corresponding predicted QoE, and
 wherein the at least one candidate QoS parameter set and the corresponding predicted QoE are within the QoS parameters.   
     
     
         11 . A network data analytics function (NWDAF) entity comprising:
 at least one processor; and   at least one memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the NWDAF entity to:
 receive, from a policy control function (PCF) entity, a first message requesting analytics of quality of service (QoS) and policy assistance, wherein the first message includes at least one QoS parameter set, and 
 transmit, to the PCF entity, a second message including the analytics, 
   wherein the analytics includes predictions on the QoS and policy assistance associated with the at least one QoS parameter set, and   wherein QoS parameters or a policy to apply for a service are based on the analytics.   
     
     
         12 . The NWDAF entity of  claim 11 , wherein the instructions further cause the NWDAF entity to:
 obtain input data including first information on an uplink (UL) delay or a downlink (DL) delay from an operations, administration, and maintenance (OAM) entity, and second information related to the QoS and policy assistance,   wherein the second information includes at least one of information on a packet filter set from a session management function (SMF) entity, or information on a packet loss rate from a user plane function (UPF) entity, and   wherein the analytics are based on the input data.   
     
     
         13 . The NWDAF entity of  claim 11 , wherein the first message further includes a requested quality of experience (QoE) indicating that the QoS parameters are equal to or higher than the requested QoE. 
     
     
         14 . The NWDAF entity of  claim 11 , wherein each of the at least one QoS parameter set includes at least one of a 5G QoS identifier (5QI), QoS characteristics, or a bit rate including a guaranteed bit rate (GBR) and a maximum bit rate (MBR). 
     
     
         15 . The NWDAF entity of  claim 11 , wherein the predictions include at least one candidate QoS parameter set and a corresponding predicted QoE, and
 wherein the at least one candidate QoS parameter set and the corresponding predicted QoE are within the QoS parameters.   
     
     
         16 . A policy control function (PCF) entity comprising:
 at least one processor; and   at least one memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the PCF entity to:   transmit, to a network data analytics function (NWDAF) entity, a first message requesting analytics of quality of service (QoS) and policy assistance, wherein the first message includes at least one QoS parameter set,   receive, from the NWDAF entity, a second message including the analytics including predictions on the QoS and policy assistance associated with the at least one QoS parameter set, and   identify QoS parameters or a policy to apply for a service based on the analytics.   
     
     
         17 . The PCF entity of  claim 16 , wherein the analytics are based on an input data,
 wherein the input data includes first information on an uplink (UL) delay or a downlink (DL) delay from an operations, administration, and maintenance (OAM) entity, and second information related to the QoS and policy assistance, and   wherein the second information includes at least one of information on a packet filter set from a session management function (SMF) entity, or information on a packet loss rate from a user plane function (UPF) entity.   
     
     
         18 . The PCF entity of  claim 16 , wherein the first message further includes a requested quality of experience (QoE) indicating that the QoS parameters are equal to or higher than the requested QoE. 
     
     
         19 . The PCF entity of  claim 16 , wherein each of the at least one QoS parameter set includes at least one of a 5G QoS identifier (5QI), QoS characteristics, or a bit rate including a guaranteed bit rate (GBR) and a maximum bit rate (MBR). 
     
     
         20 . The PCF entity of  claim 16 , wherein the predictions include at least one candidate QoS parameter set and a corresponding predicted QoE, and
 wherein the at least one candidate QoS parameter set and the corresponding predicted QoE are within the QoS parameters.